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64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef GPU_COMMAND_BUFFER_SERVICE_MAILBOX_MANAGER_IMPL_H_
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#define GPU_COMMAND_BUFFER_SERVICE_MAILBOX_MANAGER_IMPL_H_
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#include <map>
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#include <utility>
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#include "base/memory/linked_ptr.h"
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#include "base/memory/ref_counted.h"
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#include "gpu/command_buffer/common/constants.h"
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#include "gpu/command_buffer/common/mailbox.h"
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#include "gpu/command_buffer/service/mailbox_manager.h"
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#include "gpu/gpu_export.h"
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namespace gpu {
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namespace gles2 {
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class Texture;
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class TextureManager;
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// Manages resources scoped beyond the context or context group level.
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class GPU_EXPORT MailboxManagerImpl : public MailboxManager {
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public:
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MailboxManagerImpl();
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// MailboxManager implementation:
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Texture* ConsumeTexture(const Mailbox& mailbox) override;
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void ProduceTexture(const Mailbox& mailbox, Texture* texture) override;
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bool UsesSync() override;
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void PushTextureUpdates(uint32 sync_point) override {}
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void PullTextureUpdates(uint32 sync_point) override {}
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void TextureDeleted(Texture* texture) override;
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protected:
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~MailboxManagerImpl() override;
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private:
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friend class base::RefCounted<MailboxManager>;
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void InsertTexture(const Mailbox& mailbox, Texture* texture);
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// This is a bidirectional map between mailbox and textures. We can have
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// multiple mailboxes per texture, but one texture per mailbox. We keep an
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// iterator in the MailboxToTextureMap to be able to manage changes to
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// the TextureToMailboxMap efficiently.
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typedef std::multimap<Texture*, Mailbox> TextureToMailboxMap;
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typedef std::map<Mailbox, TextureToMailboxMap::iterator>
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MailboxToTextureMap;
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MailboxToTextureMap mailbox_to_textures_;
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TextureToMailboxMap textures_to_mailboxes_;
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DISALLOW_COPY_AND_ASSIGN(MailboxManagerImpl);
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};
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} // namespage gles2
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} // namespace gpu
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#endif // GPU_COMMAND_BUFFER_SERVICE_MAILBOX_MANAGER_IMPL_H_
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